25 Or 6 To 4

I'd forgotten how much I liked this tune until coming across it today, probably because of all the dreck pop Chicago produced later in the 1970s and into the 80s.  Driven by the band's outstanding horn section and Terry Kath's guitar, 1970's 25 Or 6 To 4 is about sitting in an apartment at 4am and trying to write a song.  Like so many in that era, Kath struggled with drugs and alcohol.  In 1978 he died when  pointing what he thought was an unloaded gun at his head and pulling the trigger.